/Engine/Source/Runtime/Engine/Public/SceneInterface.h
Allocates reflection captures in the scene's reflection cubemap array and updates them by recapturing the scene. Existing captures will only be updated. Must be called from the game thread.
virtual void AllocateReflectionCaptures ( const [TArray](API\Runtime\Core\Containers\TArray)< [UReflectionCaptureComponent](API\Runtime\Engine\Components\UReflectionCaptureComponent) * > & NewCaptures, const TCHAR * CaptureReason, bool bVerifyOnlyCapturing, bool bCapturingForMobile, bool bInsideTick )